Figure 5-11.-Barostatic release unit.Barostat Assembly. The barostat consistsoperating. As altitude decreases, the capsuleof an aneroid capsule in a housing that is screwedpeg retracts and allows the mechanism tointo the release unit in a position that allowsfunction.a peg attached to the capsule to engage a starwheel in the delay mechanism. At altitudes inImpulse Cartridge.  The impulse cartridgeexcess of the barostat rating, the peg engages the(CCU-102/A) provides the gas necessary for thestar wheel and prevents the delay mechanism fromfunctions of the restraint release assembly.5-11